Bar and Rod
Plate and Sheet
Strip
Pipe and Tube
Wire
Welding
Powder Material
Cast Products
Forged Products
Fittings
Fastening
Round Bar:
φ2–500 mm, 1–6 m length
Flat/Square Bar:
4–100 mm thickness/width
Hex Bar:
A/F 3–100 mm
Hollow Bar:
OD 20–300 mm
Sheet:
0.3–6 mm thickness
Medium Plate:
6–25 mm thickness
Heavy Plate:
25–100 mm thickness
Standard Strip:
0.05–3 mm thick,
10–600 mm wide
Precision strip:
0.01–0.5 mm thick,
tight tolerance ±0.005 mm
Foil:
0.005–0.1 mm thick
Seamless Tube:
OD 6–450 mm,
WT 1–50 mm,
1–12 m length
Welded Tube:
OD 10–600 mm,
WT 1–20 mm
Capillary Tube:
OD 1–10 mm,
WT 0.1–2 mm
Wire Form:
Cold Drawn Wire,
Bright Wire,
Spring Wire,
Fine Wire,
Ultra-fine Wire
General Diameter:
φ0.1–10 mm
Coil Weight:
50–500 kg,
customizable tolerance
Solid Wire:
φ0.8–4.0 mm
Flux-cored Wire:
φ1.2–4.0 mm
Welding Rod:
φ2.0–5.0 mm
Powder Form:
AM 3D Printing Powder,
Spherical Powder,
Gas-atomized Powder,
Water-atomized Powder
Particle Size:
10–150 μm
Sphericity:
≥90% for AM grade
Cast Ingot:
φ200–800 mm
Precision Casting:
min wall 0.5 mm
Cast Pipe:
OD 100–600 mm,
WT 10–50 mm
Forged Bar:
Φ35–500 mm
Forged Ring:
OD 200–2000 mm
Forging Weight:
1–5000 kg
Fittings Form:
Elbow, Tee, Reducer, Flange, Cap, Outlet, Lap Joint
Size range:
1/2''–24'' (DN15–DN600)
Wall thickness:
Sch10–Sch160, STD, XS, XXS
Pressure Class:
150–2500 LB
Fastening Form:
Bolt, Nut, Screw, Stud, Washer, Pin, Rivet
Metric: M3–M64
Imperial: #4–2.5''
Length: 6–500 mm
Alloy 200 is commercially pure (99.0% minimum) wrought nickel, valued for its excellent resistance to many corrosive media — especially caustic alkalies — together with high electrical and thermal conductivity, magnetostrictive properties and a low gas content and vapour pressure. This datasheet presents the material within the American (ASTM / ASME / SAE-AMS / UNS) standard system.
It offers outstanding resistance to hot and cold caustic soda (sodium hydroxide) at all concentrations, and good resistance to neutral and reducing (non-oxidising) salt solutions, most organic acids, and dry halogens. The high nickel content gives excellent resistance to chloride-ion stress-corrosion cracking and to alkaline environments. Being commercially pure nickel, it is ferromagnetic and provides high thermal and electrical conductivity relative to nickel-base alloys and stainless steels.
It is readily fabricated by hot and cold working and joined by welding, brazing and soldering. A key limitation is temperature: above about 315 °C (600 °F) the carbon present can precipitate as graphite at grain boundaries and impair properties, so for service above 315 °C the low-carbon version Nickel 201 (UNS N02201) is preferred. Typical applications include caustic-soda handling and evaporation, food processing, synthetic-fibre production, electrical and electronic components, and chlorination equipment.
Values per Special Metals official datasheet, annealed condition.
| Property | Value | Unit |
|---|---|---|
| Density | 8.89 | g/cm³ |
| Melting range | 1435–1446 | °C |
| Young's modulus (20 °C) | 204 | GPa |
| Specific heat capacity (20 °C) | 456 | J/kg·K |
| Thermal conductivity (20 °C) | 70.2 | W/m·K |
| Electrical resistivity (20 °C) | 0.096 | µΩ·m |
| Coefficient of thermal expansion (20–100 °C) | 13.3 | µm/m·°C |
| Curie temperature | ~360 | °C |
| Magnetic response | Ferromagnetic | — |
| Maximum service temperature | ~315 | °C |
Limiting composition per ASTM B160 (UNS N02200).
| Element | Symbol | Min % | Max % | Role / Note |
|---|---|---|---|---|
| Nickel (+ Cobalt) | Ni | 99.0 | — | Commercially pure base; corrosion + conductivity |
| Carbon | C | — | 0.15 | Controlled; graphitises above ~315 °C (use Nickel 201 above this) |
| Manganese | Mn | — | 0.35 | Deoxidiser |
| Iron | Fe | — | 0.40 | Residual |
| Sulphur | S | — | 0.01 | Residual impurity |
| Silicon | Si | — | 0.35 | Deoxidiser |
| Copper | Cu | — | 0.25 | Residual |
Note: this is commercially pure nickel, not an alloy; the listed elements are limits on residuals in a ≥99.0% Ni matrix.
Typical room-temperature properties, annealed condition.
| Property | Value | Source |
|---|---|---|
| Ultimate tensile strength | 380–550 MPa | Annealed (ASTM B160-series / typical) |
| 0.2% proof strength (yield) | ≥100 MPa | Annealed |
| Elongation at break | 40–45 % | Annealed |
| Hardness | ~45–65 HRB | Annealed |
The material is highly ductile across a wide temperature range and work-hardens with cold work, which can substantially raise the tensile strength. Values are typical; confirm against the mill test certificate for each delivery.
| Environment | Performance | Notes |
|---|---|---|
| Caustic soda (NaOH, all conc.) | Outstanding | The benchmark material; hot and cold |
| Alkaline solutions | Excellent | High nickel content |
| Neutral / reducing salt solutions | Very Good | Non-oxidising salts |
| Most organic acids | Good | e.g. fatty acids |
| Dry halogens (Cl₂, F₂, etc.) | Very Good | Dry chlorine/fluorine |
| Distilled / natural waters | Excellent | Low corrosion |
| Chloride stress-corrosion cracking | Outstanding | High nickel content |
| Oxidising acids (e.g. nitric) | Poor | Not recommended |
| Oxidising salts (e.g. ferric/cupric) | Poor | Avoid |
Commercially pure nickel; strengthened only by cold work (not age-hardenable). Heat treatment is for annealing / stress relief.
Anneal Temperature: 704–871 °C (1300–1600 °F), time depending on section and prior cold work, followed by appropriate cooling Purpose: softening and recrystallisation after cold work.
Service caution: above ~315 °C (600 °F) the carbon can precipitate as graphite at grain boundaries, embrittling the metal; for sustained service above 315 °C use the low-carbon Nickel 201 (UNS N02201).
Readily joined by welding, brazing and soldering. Welding is straightforward; the metal must be clean and free of contaminants (sulphur, lead) that cause embrittlement at temperature.
| Welding Process | Applicability | Filler / Consumable |
|---|---|---|
| GTAW / TIG · GMAW / MIG | Excellent | AWS A5.14 ERNi-1 (matching nickel filler) |
| SMAW / stick | Good | AWS A5.11 ENi-1 |
| Brazing / soldering | Suitable | Appropriate brazing alloys |
Clean joints thoroughly before welding; avoid sulphur-bearing marking materials and lubricants.
Machining Guidelines
| Parameter | Recommendation |
|---|---|
| Condition | Machines best cold-drawn or cold-drawn + stress-relieved |
| Work hardening | Work-hardens; rigid setup, sharp tooling, positive rake |
| Coolant | Flood coolant recommended |
Forming Processes
| Process | Notes |
|---|---|
| Hot working | 649–1232 °C; heavy forming above 871 °C |
| Cold forming | Excellent ductility; readily spun, drawn, deep-drawn; work-hardens |
| Annealing | 704–871 °C after heavy cold work |
| Industry | Typical Components | Key Requirements |
|---|---|---|
| Chemical processing | Caustic-soda evaporators, reactors, piping, valves | Caustic + alkaline resistance |
| Food processing | Equipment for handling foods, synthetic fibres | Corrosion resistance + non-contamination |
| Electrical / electronics | Leads, lead-in wires, components, battery hardware | High conductivity; ferromagnetic |
| Chlor-alkali | Chlorination equipment, dry-halogen handling | Caustic + dry-halogen resistance |
| Aerospace / process | Combustion boats, plater bars, wire mesh, filters | Purity + corrosion resistance |
| Electronics | Magnetostrictive devices, transducers | Magnetic + conductivity properties |
| Product Form | ASTM Standard | ASME Code |
|---|---|---|
| Rod and bar | ASTM B160 | ASME SB-160 |
| Plate, sheet and strip | ASTM B162 | ASME SB-162 |
| Seamless pipe and tube | ASTM B161 / B163 / B829 | ASME SB-161 / SB-163 |
| Welded pipe / tube | ASTM B725 / B730 | ASME SB-725 / SB-730 |
| Forgings | ASTM B564 | ASME SB-564 |
| Wire | ASTM B160-related | — |
| Welding consumables | AWS A5.14 ERNi-1 · AWS A5.11 ENi-1 | — |
Commercially pure wrought nickel. UNS N02200; SAE AMS 5553. For service above 315 °C use Nickel 201 (N02201).
| Alloy | Ni % | Key Element | Type | Best Used For |
|---|---|---|---|---|
| Alloy 200 | ≥99.0 | C ≤0.15 | Ferromagnetic | Caustic/alkali to 315°C; conductivity |
| Alloy 201 | ≥99.0 | C ≤0.02 | Low-carbon | Caustic above 315°C (no graphitisation) |
| Alloy 400 | 63–70 | Cu 28–34 | Ni-Cu | Seawater, HF, reducing acids |
| Alloy 600 | ≥72 | Cr 14–17 | Ni-Cr-Fe | High-temperature oxidation to 1095°C |
| Alloy 205 | ≥99.0 | C ≤0.15, Mg/Ti | Electronic | Electronic/electrical (controlled Mg/Ti) |
021-33556635
13371897780
651280525@qq.com
No. 600, Si Chuang Road, Songjiang District, Shanghai
